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Finding the Fourth Proportional to 604,657.80, 907,685.10 and 324,721.80

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Solution

The fourth proportional to 604,657.80, 907,685.10 and 324,721.80 is: 487,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,657.80 : 907,685.10 = 324,721.80 : x
  2. Step 2: Convert to fraction form
    604,657.80/907,685.10 = 324,721.80/x
  3. Step 3: Cross multiply
    604,657.80x = 907,685.10 × 324,721.80
  4. Step 4: Simplify right side
    604,657.80x = 294,745,139,505.18
  5. Step 5: Solve for x
    x = 294,745,139,505.18/604,657.80
  6. Step 6: Final answer
    x = 487,457.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.